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Civil and Environmental Engineering
Werth Research Group
Research Areas
Publications
Group Members
Publications
Peer-Reviewed Journal Publications :
  1. Yoon, H, A.J. Valocchi, C.J. Werth, Effect of soil moisture dynamics on dense nonaqueous phase liquid (DNAPL) spill zone architecture in heterogeneous porous media, J. Contam. Hydrol., In Press, 2007.

  2. Gopalakrishnan, G., M. C. Negri, B. S. Minsker, C. J. Werth, Monitoring subsurface contamination using tree branches, Ground Water Monitoring and Remediation, 27(1), 1-10, 2007.

  3. Werth, C. J., O. A. Cirpka, P. Grathwohl, Enhanced mixing and reaction through flow focusing in heterogeneous porous media, Water Resour. Res., 42, W12414, doi:10.1029/2005WR004511, 2006.

  4. Knutson, C. E., A. J. Valocchi, C. J. Werth, Comparison of continuum and pore-scale models of nutrient biodegradation under transverse mixing conditions, Adv. Water Res., doi:10.1016/j.advwatres.2006.05.012, 2006.

  5. Brennan, R. A., R. A. Sanford, C. J. Werth, Chitin and corncobs as electron donor sources for the reductive dechlorination of tetrachloroethene, Water Res., 40(11), 2125-2134, 2006

  6. Chaplin, B.P., E. Roundy, K. A. Guy, J. R. Shapley, C. J. Werth, The Effects of Natural Water Ions and Humic Acid on Catalytic Nitrate Reduction Kinetics Using an Alumina Supported Pd-Cu Catalyst, Env. Sci. Technol., 40(9), 3075-3081, 2006.

  7. Brennan, R. A., R. A. Sanford, C. J. Werth, Biodegradation of Tetrachloroethene by Chitin Fermentation Products in a Continuous Flow Column System, J. Environ. Eng, ASCE., 132, 664, 2006.

  8. Knutson, C., C. J. Werth, A. J. Valocchi, Pore scale simulations of biomass growth along the transverse mixing zone of a model 2D porous medium, Water Resour. Res., 41, W07007, 2005.

  9. Jeong, S., C. J. Werth, Evaluation of Methods To Obtain Geosorbent Fractions Enriched in Carbonaceous Materials That Affect Hydrophobic Organic Chemical Sorption, Environ. Sci. Technol., 39(9), 3279-3288, 2005.

  10. Baumann, T., C. J. Werth, Visualization of Colloid Transport Through Heterogeneous Porous Media Using Magnetic Resonance Imaging, Colloids and Surfaces A., 265(1-3), 2-10, 2005.

  11. Chu, Y., C. J. Werth, A. J. Valocchi, H. Yoon, A. G. Webb, Magnetic resonance imaging of nonaqueous phase liquid during soil vapor extraction in heterogeneous porous media, J. Contam. Hydrol., 73, 15-37, 2004.

  12. Valocchi, A. J., C. J. Werth, Web-based interactive simulation of groundwater pollutant fate and transport, Computer Appl. Engineer. Education, 12(2), 75-84, 2004.

  13. Willingham, T., C. J. Werth, A. J. Valocchi, I. Krapac, T. Stark, D. Daniel, Evaluation of multi-dimensional transport through a field-scale compacted soil liner, J. Geotech. Geoenviron. Eng., 130(9), 887-895, 2004.

  14. Baumann, T., C. J. Werth, Visualisation and modelling of polystyrol colloid transport in a silicon micromodel, Vadose Zone J., In Press, 2004.

  15. Li, J., C. J. Werth, Slow desorption mechanisms of volatile organic chemical mixtures in soil and sediment micropores, Environ. Sci. Technol., 38(2), 440-448, 2004.

  16. Nambi, I., C. J. Werth, R. A. Sanford, A. J. Valocchi, Pore-scale analysis of anaerobic halorespiring bacterial growth along the transverse mixing zone of an etched silicon pore network, Environ. Sci. Technol., 37(24), 5617-5624, 2003.

  17. Chomsurin, C., C. J. Werth, Analysis of pore-scale nonaqueous phase liquid dissolution in etched silicon pore networks, Water Resour. Res., 39(9), 1265, 2003.

  18. Yoon, H., A. J. Valocchi, C. J. Werth, The influence of water content on soil vapor extraction, Vadose Zone J., 2, 368-381, 2003.

  19. Zhang, C., C. J. Werth, A. G. Webb, A magnetic resonance imaging study of dense nonaqueous phase liquid dissolution from angular porous media, Environ. Sci. Technol., 36, 3310-3317, 2002.

  20. Werth, C. J., K. M. Hansen, Modeling the effects of concentration history on the slow desorption of trichloroethene from a soil, J. Contam. Hydrol., 54, 307-327, 2002.

  21. Li, J., C. J. Werth, Modeling sorption isotherms of volatile organic chemical mixtures in model and natural solids, Environ. Toxicol. Chem., 21, 7, 1377-1383, 2002.

  22. Toupiol, C., T. Willingham, A. J. Valocchi, C. J. Werth, I. G. Krapac, T. D. Stark, D. E. Daniel, Long-Term Tritium Transport Through a Field-Scale Compacted Soil Liner, J. Geotech. Geoenviron. Eng., 128, 640-650, 2002.

  23. Knutson, C., C. J. Werth, A. J. Valocchi, Pore-scale dissolution of variably distributed nonaqueous phase liquid blobs, Water Resour. Res., 37, 2951-2963, 2001.

  24. Vera, S. M., C. J. Werth, and R. A. Sanford, Evaluation of different polymeric organic materials for creating conditions that favor reductive processes in groundwater, Bioremediation J., 5(3), 169-181, 2001.

  25. Li, J., and C. J. Werth, Evaluating competitive sorption mechanisms of volatile organic compounds in soils and sediments using polymers and zeolites, Environ. Sci. Technol., 35, 568-574, 2001.

  26. Grens, B. K. and C. J. Werth, Durability of wood-based versus coal-based granular activated carbon, J. American Water Works Assocation, 175-181, April, 2001.

  27. Werth, C. J., S. A. McMillan, and H. J. Castilla, Structural evaluation of slow-desorbing sites in model and natural solids using temperature stepped desorption profiles. 1. Model development, Environ. Sci. Technol., 34, 2959-2965, 2000.

  28. Castilla, H. J., Werth, C. J., and S. A. McMillan, Structural evaluation of slow-desorbing sites in model and natural solids using temperature stepped desorption profiles. 2. Column results, Environ. Sci. Technol., 34, 2966-2972, 2000.

  29. Schaefer, C. E., C. Schuth, C. J. Werth, and M. Reinhard, Binary desorption isotherms of TCE and PCE from silica gel and natural solids, Environ. Sci. Technol., 34, 4341-4347, 2000.

  30. Werth, C. J. and M. Reinhard, Sterically-hindered counter-diffusion of isotopically-labeled trichloroethylene in silica gel and geosorbent micropores. Column results, Environ. Sci. Technol., 33, 730-736, 1999.

  31. McMillan, S. A. and C. J. Werth, Sterically-hindered counter-diffusion of trichloroethylene isotopes in silica gel and geosorbent micropores. Model Development, Environ. Sci. Technol., 33, 2178-2185, 1999.

  32. Hollenbeck, K. J., C. F. Harvey, R. Haggerty, C. J. Werth, Estimation of continuous mass-transfer rate distributions, J. Contam. Hydrol., 37, 367-388, 1999.

  33. Werth, C. J., J. Cunningham, P. V. Roberts, and M. Reinhard, Effects of grain-scale mass transfer on the transport of volatile organics through sediments: 2. Column results, Water Resour. Res., 30, 12, 2727-2740, 1997.

  34. Cunningham, J., C. J. Werth, M. Reinhard, and P. V. Roberts, Effects of grain-scale mass transfer on the transport of volatile organics through sediments: 1. Model development, Water Resour. Res., 30, 12, 2713-2726, 1997.

  35. Werth, C.J. and M. Reinhard, Effects of temperature on trichloroethylene desorption from silica gel and natural sediments. 1. Isotherms. Environ. Sci. & Technol., 31(3), 689-696, 1997.

  36. Werth, C.J. and M. Reinhard, Effects of temperature on trichloroethylene desorption from silica gel and natural sediments. 2. Kinetics. Environ. Sci. & Technol., 31(3), 697-703, 1997.
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Conference Proceedings And Abstracts :
  1. Xu, H., K. Guy, J. Shapley, D. Johnson, C.J. Werth, J.C. Yang, Structural characterizations of bimetallic Pd/Cu nanocatalysts for the purification of drinking water, Engineering Sustainability, Pittsburgh, Pennsylvania, April 10-12, 2005.

  2. Werth, C.J., S. Jeong, P. Grathwohl (ABSTRACT), Identification of carbonaceous material fractions and properties that control hydrophobic organic chemical sorption in soils and sediments, Proceedings of the Society of Environmental Toxicology and Chemistry, Lille, France, In Press, Spring 2005.

  3. Werth, C.J., S. Kleineindam, K. Silvers, S. Jeong, P. Grathwohl (ABSTRACT), Comparison of physiochemical treatment and petrographic methods to identify organic matter facies that control sorption in soils and sediments, Proceedings of the European Geophysical Union, Vienna, Austria, In Press, Spring 2005.

  4. Gopalakrishnan G, C.M Negri, B.S. Minsker and C.J. Werth, "Monitoring soil and groundwater plumes using trees in an existing phytoremediation system", Third International Phytotechnologies Conference, Atlanta, U.S.A., April 2005.

  5. Barnuevo, G., R. Sanford, C.J. Werth, TITLE. The Joint International Symposia for Subsurface Microbiology (ISSM 2005) and Environmental Biogeochemistry (ISEB XVII) being held in Jackson Hole, WY, August 14-19.

  6. Barnuevo, G., R. Sanford, C.J. Werth, Biodegradation of tetrachloroethene in a continuous column system using chitin as the electron donor. National Meeting of the American Society of Microbiology, Atlanta. June, 2005.

  7. Brennan, R.A., R.A. Sanford, C.J. Werth, "Bioremediation of tetrachloroethene using chitin: spatial and temporal effects in a 1-D column system." Proceedings of the Remediation of Chlorinated and Recalcitrant Compounds: The Fourth International Conference, Monterey, CA, 2004.

  8. Yoon, H., A.J. Valocchi, C.J. Werth, Impact of spatially distributed NAPL saturation and water content on soil vapor extraction in heterogeneous porous media, Proceedings of the Computational Methods in Water Resources Meeting, University of North Carolina, Chapel Hill, Spring 2004.

  9. Martin, J.P., K.S. Sorenson, Jr., R.A. Brennan, R.A. Sanford, C.J. Werth, G.H. Bures, G. Guest, R. Fulton, "Full-scale application of chitin for bioremediation of chlorinated solvents." Proceedings of the Remediation of Chlorinated and Recalcitrant Compounds: The Fourth International Conference, Monterey, CA, 2004.

  10. Knutson, C.E., C.J. Werth, A.J. Valocchi, B.J. Travis, Modeling biofilm morphology in porous media at the pore scale, Proceedings of the Computational Methods in Water Resources Meeting, University of North Carolina, Chapel Hill, Spring 2004.

  11. Roundy, E., K. Guy, J.R. Shapley, C.J. Werth, The effects of natural water ions and humic acid on nitrate reduction using an alumina supported Pd-Cu catalyst, Proceedings of the American Chemical Society Meeting, Division of Environmental Chemistry, Philadelphia, PN, 2004 Fall Meeting.

  12. Jeong, S., C.J. Werth, Spectroscopic characterization of carbonaceous material properties that affect hydrophobic organic chemical sorption, Proceedings of the American Chemical Society Meeting, Division of Environmental Chemistry, Philadelphia, PN, 2004 Fall Meeting.

  13. Brennan, R.A., C.J. Werth, R.A. Sanford, "Tracking the growth and distribution of a chloridogenic microbial community in PCE-contaminated sediments treated with chitin." Proceedings of the 10th International Symposium on Microbial Ecology – ISME, Mexico, 2004.

  14. Yoon, H., A.J. Valocchi, C.J. Werth (ABSTRACT), Effect of soil Moisture dynamics on DNAPL spill zone architecture in heterogeneous porous media, EOS Transactions, The American Geophysical Union, Hydrol. Division, San Francisco, CA, 2004 Fall Meeting.

  15. Yoon, H., A. J. Valocchi, C. J. Werth (ABSTRACT), Modeling the Influence of Temperature and Water Content on Soil Vapor Extraction, EOS Transactions, Joint Meeting of The American Geophysical Union and the European Geophysical Society, Hydrol. Division, Nice, France, 2003 Spring Meeting.

  16. Chu, Y., C. J. Werth, A. J. Valocchi, A. G. Webb (ABSTRACT), Investigation of Soil Vapor Extraction Mechanisms using Magnetic Resonance Imaging (MRI), EOS Transactions, Joint Meeting of The American Geophysical Union and the European Geophysical Society, Hydrol. Division, Nice, France, 2003 Spring Meeting.

  17. Chomsurin, C., C. J. Werth (ABSTRACT), Pore-Scale Analysis of Mass Transfer from Dense Nonaqueous Phase Liquids Trapped in Low Permeability Zones of an Etched-Silicon Pore Network, EOS Transactions, Joint Meeting of The American Geophysical Union and the European Geophysical Society, Hydrol. Division, Nice, France, 2003 Spring Meeting.

  18. Knutson, C., A. J. Valocchi, C. J. Werth (ABSTRACT), The influence of pore-scale transverse mixing upon biodegradation reactions and biomass growth, EOS Transactions, Joint Meeting of The American Geophysical Union and the European Geophysical Society, Hydrol. Division, Nice, France, 2003 Spring Meeting.

  19. Nambi, I. M., C. J. Werth, R. A. Sanford, A Pore-scale investigation of anaerobic dechlorinating bacteria growth, Proceedings of the American Chemical Society Meeting, Division of Environmental Chemistry, New Orleans, 2003 Spring Meeting.

  20. Chu, Y., C. J. Werth, A. J. Valocchi, A. G. Webb (ABSTRACT), Magnetic resonance imaging of nonaqueous phase liquid during soil vapor extraction in heterogeneous porous media, EOS Transactions, The American Geophysical Union, Hydrol. Division, San Francisco, CA, 2002 Fall Meeting.

  21. Yoon, H., A. J. Valocchi, C. J. Werth (ABSTRACT), The influence of water content on soil vapor extaction, EOS Transactions, The American Geophysical Union, Hydrol. Division, San Francisco, CA, 2002 Fall Meeting.

  22. Chomsurin, C. and C. J. Werth (ABSTRACT), Characterization of the mass flux to groundwater from DNAPL trapped in low conductivity zones, EOS Transactions, The American Geophysical Union, Hydrol. Division, San Francisco, CA, 2002 Fall Meeting.

  23. Li, J. and C. J. Werth (ABSTRACT), Slow desorption mechanisms of volatile organic chemical mixtures in soil and sediment micropores, EOS Transactions, The American Geophysical Union, Hydrol. Division, San Francisco, CA, 2002 Fall Meeting.

  24. Sanford, R. A., C. J. Werth, I. Nambi, Pore-scale analysis of microbial growth using a silicon-based micromodel, Conference of the Association of Environmental Engineering and Science Professors, Toronto, August 11-13, 2002.

  25. Valocchi, A. J. and C. J. Werth, Interactive web-based models for teaching students about integrated processes that control pollutant transport and fate in groundwater, Conference of the Association of Environmental Engineering and Science Professors, Toronto, August 11-13, 2002.

  26. Valocchi, A. J. and C. J. Werth, Enhancing Student Understanding of Reactive Pollutant Fate and Transport Using Web-Based Interactive Simulation, XIV International Conference on Computational Methods in Water Resources, Delft, The Netherlands, June 23-28, 2002.

  27. Werth, C. J., C. Chomsurin, C. Zhang, A. Webb, Analysis of pore-scale mass transfer processes that control nonaqueous phase liquid dissolution and the implications for risk assessment, Proceedings of the 1st International Workshop on Groundwater Risk Assessment at Contaminated Sites, Tuebingen University, Tuebingen, Germany, 2002.
  28. Zhang, C., C. J. Werth, and A. G. Webb, A Magnetic Resonance Imaging Study of Dense Nonaqueous Phase Liquid Dissolution from Angular Porous Media, 6th International Conference on Magnetic Resonance in Porous Media, Ulm, Sept. 8-12, 2002.

  29. Baumann, T., C. J. Werth, R. Niessner, Quantitative observation of colloidal transport with etched silica micromodels, European Geophysical Union XXVII General Assembly, Nice, France, 22.-25.4.2001.

  30. Werth, C. J. and C. Chomsurin (ABSTRACT), Pore-scale evaluation of dense nonaqueous-phase liquid dissolution using silicon-based micromodels, EOS Transactions, The American Geophysical Union, Hydrol. Division, Boston, MA, 2001 Fall Meeting

  31. Chomsurin, C. and C. J. Werth (ABSTRACT), DNAPL Dissolution in a silicon based micromodel using fluorescence microscopy and digital image analysis, EOS Transactions, The American Geophysical Union, Hydrol. Division, Boston, MA, 2001 Spring Meeting.

  32. Knutson, C., C. J. Werth, and A. J. Valocchi (ABSTRACT), Pore scale modeling of apparent mass transfer limitations during equilibrium controlled NAPL dissolution, EOS Transactions, The American Geophysical Union, Hydrology Division, Boston, MA, 2001 Spring Meeting.

  33. Nambi, I., C. J. Werth, and R. A. Sanford (ABSTRACT), Investigation of biodegradation of chlorinated ethenes at the pore scale using silicon based micromodels, EOS Transactions, The American Geophysical Union, Hydrology Division, Boston, MA, 2001 Spring Meeting.

  34. Zhang, C. and C. J. Werth (ABSTRACT), Characterization of DNAPL dissolution in porous media using magnetic resonance imaging, EOS Transactions, The American Geophysical Union, Hydrology Division, Boston, MA, 2001 Spring Meeting.

  35. Knutson, C. and C. J. Werth (ABSTRACT), Pore-scale fluid velocity measurements through porous media using MRI, EOS Transactions, The American Geophysical Union, Hydrology Division, Boston, MA, 2001 Spring Meeting.

  36. Nambi, I., R. Sanford, C. J. Werth, Investigation of the anaerobic reductive dechlorination of chlorinated ethenes at the pore-scale using micromodels, 9th International Symposium, Microbial Ecology Interactions with the Microbial World, Amsterdam, August 2001.

  37. Brennan, R. A., S. M. Vera, R. A. Sanford, and C. J. Werth, Bioremediation of PCE in a Column Experiment Using Chitin Fermentation, Proceedings of the In Situ and On-Site Bioremediation 6th International Symposium, San Diego, Summer of 2001.

  38. Vera S. M., R. A. Brennan, C. J. Werth, and R. A. Sanford, Analysis of substrates to support a halorespiration enhanced redox transition zone, HERTZ, in chlorinated solvent impacted groundwater, Proceedings of the Groundwater 2000 Conference, Amsterdam, 2000.

  39. Li, J. and C. J. Werth, Evaluating competitive sorption mechanisms in soils and sediments using zeolites, Proceedings of the American Chemical Society Meeting, Division of Environmental Chemistry, Washington DC, 2000 Fall Meeting.

  40. Hansen, K. M. and C. J. Werth, Effects of concentration and incubation time on the slow desorption of TCE from a soil, Proceedings of the American Chemical Society Meeting, Division of Environmental Chemistry, Washington DC, 2000 Fall Meeting.

  41. Werth, C. J., H. Castillia, and S. A. McMillan (ABSTRACT), Structural evaluation of slow desorbing site via isotope exchange column studies, Transactions of the European Geophysical Society, Hydrology Division, Nice, France, 2000 Spring Meeting.

  42. Schaefer, C., C. Scheuth, C. J. Werth, and R. Reinhard (ABSTRACT), Binary desorption isotherms of TCE and PCE from silica gel and natural solids, Transactions of the European Geophysical Society, Hydrology Division, Nice, France, 2000 Spring Meeting.

  43. Li, J. and C. J. Werth (ABSTRACT), Effects of water on trichloroethylene desorption from silica gel and natural sediments, EOS Transactions, The American Geophysical Union, Hydrology Division, Boston, MA, 1998 Spring Meeting.

  44. Castilla, H. and C. J. Werth (ABSTRACT), Effects of temperature on slow desorption characteristics of VOCs in soils and sediments, EOS Transactions, The American Geophysical Union, Hydrology Division, Boston, MA, 1998 Spring Meeting.

  45. McMillan, S. and C. J. Werth (ABSTRACT), A diffusion model of volatile organic isotope exchange in the slow sorption domain, EOS Transactions, The American Geophysical Union, Hydrology Division, San Francisco, CA, 1997 Fall Meeting.

  46. Hollenbeck, K. J., C. F. Harvey, R. Haggerty, C. J. Werth (ABSTRACT), Mass-transfer for continuous rate distributions: Modeling and estimation, EOS Transactions, The American Geophysical Union, Hydrology Division, San Francisco, CA, 1997 Fall Meeting.

  47. Werth, C. J. and M. Reinhard, Characterization of slow desorbing sites via isotope exchange column studies, Proceedings of the American Chemical Society Meeting, Division of Environmental Chemistry, Las Vegas, NV, 1997 Fall Meeting.

  48. Werth, C. J. and M. Reinhard (ABSTRACT), Mechanistic investigation of trichloroethylene desorption from model and natural solids at 100% relative humidity, The American Chemical Society, 70th Colloid and Surface Science Symposium, Potsdam, NY, June of 1996.

  49. Werth, C. J., J. Farrell and M. Reinhard, The effects of temperature on the slow desorption of trichloroethylene from Livermore sand, clay and bulk fractions: isotherms and kinetics, Proceedings of the American Chemical Society Meeting, Division of Environmental Chemistry, San Diego, CA, 1994 Spring Meeting.
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Contributions To Books :
  1. Werth, C.J., Equilibrium Partitioning and Mass Transfer of Organic Chemicals Leached from Recycled Hazardous Wastes, In: Environmental Impact assessment of Recycled Hazardous Waste Materials on Surface and Ground waters: Chemodynamics, Toxicology, Modeling and Information Systems. The Handbook of Environmental Chemistry, Water Pollution Series, Volume 5/Part F (Kassim TA and Williamson KJ, eds.), Springer-Verlag, Berlin-Heidelberg, 2005.
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